Biology, 01.12.2020 20:00 alainacorkell2087
Which of the following is the flexible protein fiber that makes up the skeleton for
most sponges, including demosponges?
a) mesohy!
b) spongin
c) glass
od) amoebocyte
Answers: 3
Biology, 22.06.2019 00:00
An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.
Answers: 1
Biology, 22.06.2019 03:00
Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils
Answers: 2
Biology, 22.06.2019 05:20
When plants use sunlight to make food, the energy of sunlight is
Answers: 1
Biology, 22.06.2019 07:00
How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade
Answers: 1
Which of the following is the flexible protein fiber that makes up the skeleton for
most sponges, i...
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